<html>
<head>
<base href="https://bugs.freedesktop.org/" />
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - display of laptop goes to black when browsing the internet"
href="https://bugs.freedesktop.org/show_bug.cgi?id=83807">83807</a>
</td>
</tr>
<tr>
<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>display of laptop goes to black when browsing the internet
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Severity</th>
<td>blocker
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (All)
</td>
</tr>
<tr>
<th>Reporter</th>
<td>annejan@witsenstein.demon.nl
</td>
</tr>
<tr>
<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Version</th>
<td>XOrg CVS
</td>
</tr>
<tr>
<th>Component</th>
<td>DRM/Intel
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr></table>
<p>
<div>
<pre>I'm running a stock Ubuntu14.04LTS on a Dell Inspiron laptop with Intel G965
graphics (resolution 1440 x 900).
What I found in /var/log/kern.log:
Sep 4 00:04:13 andries-Inspiron-1525 kernel: [10453.804218] [drm] stuck on
render ring
Sep 4 00:04:13 andries-Inspiron-1525 kernel: [10453.804229] [drm] GPU crash
dump saved to /sys/class/drm/card0/error
Sep 4 00:04:13 andries-Inspiron-1525 kernel: [10453.804232] [drm] GPU hangs
can indicate a bug anywhere in the entire gfx stack, including userspace.
Sep 4 00:04:13 andries-Inspiron-1525 kernel: [10453.804234] [drm] Please file
a _new_ bug report on bugs.freedesktop.org against DRI -> DRM/Intel
Sep 4 00:04:13 andries-Inspiron-1525 kernel: [10453.804237] [drm] drm/i915
developers can then reassign to the right component if it's not a kernel issu
e.
Sep 4 00:04:13 andries-Inspiron-1525 kernel: [10453.804239] [drm] The gpu
crash dump is required to analyze gpu hangs, so please always attach it.
Sep 4 00:04:13 andries-Inspiron-1525 kernel: [10453.805253]
[drm:i915_set_reset_status] *ERROR* render ring hung inside bo (0x3682000 ctx
0) at 0x36827f
c
Sep 4 00:04:13 andries-Inspiron-1525 kernel: [10454.316221] [drm:i915_reset]
*ERROR* Failed to reset chip.
Sep 4 00:04:19 andries-Inspiron-1525 kernel: [10459.484984] Watchdog[2537]:
segfault at 0 ip 00007f46261f69de sp 00007f4615ab7670 error 6 in chrome[7f46
220a0000+547d000]
Sep 4 00:04:23 andries-Inspiron-1525 kernel: [10464.252164]
[drm:i915_gem_wait_for_error] *ERROR* Timed out waiting for the gpu reset to
complete
Sep 4 00:04:23 andries-Inspiron-1525 kernel: [10464.320071] [drm] GMBUS [i915
gmbus vga] timed out, falling back to bit banging on pin 2
Sep 4 00:04:24 andries-Inspiron-1525 kernel: [10464.359285] ------------[ cut
here ]------------
Sep 4 00:04:24 andries-Inspiron-1525 kernel: [10464.359345] WARNING: CPU: 0
PID: 1383 at /build/buildd/linux-3.13.0/drivers/gpu/drm/i915/intel_display.c
:922 assert_pll+0x68/0x70 [i915]()
Sep 4 00:04:24 andries-Inspiron-1525 kernel: [10464.359349] PLL state
assertion failure (expected on, current off)
Sep 4 00:04:24 andries-Inspiron-1525 kernel: [10464.359351] Modules linked in:
bnep rfcomm bluetooth snd_hda_codec_idt snd_hda_codec_hdmi binfmt_misc nf
sd auth_rpcgss nfs_acl nfs lockd sunrpc fscache hid_generic snd_hda_intel
snd_hda_codec snd_hwdep snd_pcm usbhid r852 snd_page_alloc snd_seq_midi sm_comm
on snd_seq_midi_event lib80211_crypt_tkip snd_rawmidi i915 hid nand snd_seq
dell_laptop dell_wmi wl(POF) sparse_keymap gpio_ich dcdbas parport_pc snd_seq
_device snd_timer nand_ecc coretemp joydev nand_bch bch nand_ids lib80211
drm_kms_helper drm cfg80211 snd mtd ppdev soundcore lp serio_raw i2c_algo_bit r
592 mac_hid lpc_ich wmi memstick parport video psmouse ahci libahci
firewire_ohci sdhci_pci firewire_core sdhci crc_itu_t sky2
Sep 4 00:04:24 andries-Inspiron-1525 kernel: [10464.359412] CPU: 0 PID: 1383
Comm: upowerd Tainted: PF W O 3.13.0-35-generic #62-Ubuntu
Sep 4 00:04:24 andries-Inspiron-1525 kernel: [10464.359414] Hardware name:
Dell Inc. Inspiron 1525 /0U990C, BIOS A16 10/16/2008
Sep 4 00:04:24 andries-Inspiron-1525 kernel: [10464.359416] 0000000000000009
ffff880063aada00 ffffffff8171e320 ffff880063aada48
Sep 4 00:04:24 andries-Inspiron-1525 kernel: [10464.359421] ffff880063aada38
ffffffff8106775d 0000000000000001 ffff8800694e0000
Sep 4 00:04:24 andries-Inspiron-1525 kernel: [10464.359425] ffff880035e3e000
0000000000000001 0000000000000000 ffff880063aada98
Sep 4 00:04:24 andries-Inspiron-1525 kernel: [10464.359428] Call Trace:
Sep 4 00:04:24 andries-Inspiron-1525 kernel: [10464.359438]
[<ffffffff8171e320>] dump_stack+0x45/0x56
If you need more/different logs or data please let me know.</pre>
</div>
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